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Rectangular test soundboard study

Hideo Suzuki
2012 Acoustical Science and Technology  
Introduction A piano soundboard is one of the major components that have significant contributions to its sound quality. The "soundboard system" consists of a soundboard, ribs, and two bridges. Considering that the soundboard is a transducer that converts strings' vibration energy to sound energy, the requirements for the soundboard are: (1) Strings' energy components should be effectively and evenly transformed into sound energy from bass to treble. (2) When the strings' energy does not change
more » ... rgy does not change smoothly from bass to treble, the soundboard should be able to compensate the unevenness by implementing appropriate design features. Four rectangular test soundboards were made with different parameters such as thickness of the board, rib width and height, and distance between adjacent ribs. The effects of these parameters on the vibration characteristics were investigated. This letter is a summary of one of piano acoustics studies conducted at CBS Technology Center [1].
doi:10.1250/ast.33.320 fatcat:oas7cn4ndvhdtaehehyvxcgqma